Enhanced low bitrate H.264 video coding using decoder-side super-resolution and frame interpolation

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dc.authorid0000-0002-6842-1528
dc.contributor.authorAteş, Hasan Fehmien_US
dc.date.accessioned2015-01-15T23:02:17Z
dc.date.available2015-01-15T23:02:17Z
dc.date.issued2013-07
dc.departmentIşık Üniversitesi, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.departmentIşık University, Faculty of Engineering, Department of Electrical-Electronics Engineeringen_US
dc.description.abstractAdvanced inter-prediction modes are introduced recently in literature to improve video coding performances of both H.264 and High Efficiency Video Coding standards. Decoder-side motion analysis and motion vector derivation are proposed to reduce coding costs of motion information. Here, we introduce enhanced skip and direct modes for H.264 coding using decoder-side super-resolution (SR) and frame interpolation. P-and B-frames are downsampled and H.264 encoded at lower resolution (LR). Then reconstructed LR frames are super-resolved using decoder-side motion estimation. Alternatively for B-frames, bidirectional true motion estimation is performed to synthesize a B-frame from its reference frames. For P-frames, bicubic interpolation of the LR frame is used as an alternative to SR reconstruction. A rate-distortion optimal mode selection algorithm is developed to decide for each MB which of the two reconstructions to use as skip/direct mode prediction. Simulations indicate an average of 1.04 dB peak signal-to-noise ratio (PSNR) improvement or 23.0% bitrate reduction at low bitrates when compared with H.264 standard. The PSNR gains reach as high as 3.00 dB for inter-predicted frames and 3.78 dB when only B-frames are considered. Decoded videos exhibit significantly better visual quality as well.en_US
dc.description.sponsorshipThis research was supported by TUBITAK Career Grant 108E201en_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationAteş, H. F. (2013). Enhanced low bitrate H.264 video coding using decoder-side super-resolution and frame interpolation. Optical Engineering, 52(7), 1-13. doi:10.1117/1.OE.52.7.071505en_US
dc.identifier.endpage13
dc.identifier.issn0091-3286
dc.identifier.issn1560-2303
dc.identifier.issue7
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/11729/488
dc.identifier.urihttp://dx.doi.org/10.1117/1.OE.52.7.071505
dc.identifier.volume52
dc.identifier.wosWOS:000319445800023
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScience Citation Index Expanded (SCI-EXPANDED)en_US
dc.institutionauthorAteş, Hasan Fehmien_US
dc.institutionauthorid0000-0002-6842-1528
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherSPIE-SOC Photo-Optical Instrumentation Engineersen_US
dc.relation.ispartofOptical Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectH.264 video codingen_US
dc.subjectLow bitrateen_US
dc.subjectSuper-resolutionen_US
dc.subjectFrame interpolationen_US
dc.subjectPredictor Selectionen_US
dc.subjectMotionen_US
dc.titleEnhanced low bitrate H.264 video coding using decoder-side super-resolution and frame interpolationen_US
dc.typeArticleen_US
dspace.entity.typePublication

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